mirror of
https://github.com/reactos/reactos.git
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148 lines
3.9 KiB
C
148 lines
3.9 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/kd/i386/kdbg.c
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* PURPOSE: Serial i/o functions for the kernel debugger.
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* PROGRAMMER: Alex Ionescu
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* Hervé Poussineau
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*/
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/* INCLUDES *****************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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#define DEFAULT_BAUD_RATE 19200
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#if defined(_M_IX86) || defined(_M_AMD64)
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const ULONG BaseArray[] = {0, 0x3F8, 0x2F8, 0x3E8, 0x2E8};
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#elif defined(_M_PPC)
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const ULONG BaseArray[] = {0, 0x800003F8};
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#elif defined(_M_MIPS)
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const ULONG BaseArray[] = {0, 0x80006000, 0x80007000};
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#elif defined(_M_ARM)
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const ULONG BaseArray[] = {0, 0xF1012000};
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#else
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#error Unknown architecture
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#endif
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#define MAX_COM_PORTS (sizeof(BaseArray) / sizeof(BaseArray[0]) - 1)
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/* STATIC VARIABLES ***********************************************************/
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// static CPPORT DefaultPort = {0, 0, 0};
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/* The COM port must only be initialized once! */
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// static BOOLEAN PortInitialized = FALSE;
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/* REACTOS FUNCTIONS **********************************************************/
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NTSTATUS
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NTAPI
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KdDebuggerInitialize1(
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IN PLOADER_PARAMETER_BLOCK LoaderBlock OPTIONAL)
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{
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return STATUS_NOT_IMPLEMENTED;
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}
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BOOLEAN
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NTAPI
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KdPortInitializeEx(
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IN PCPPORT PortInformation,
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IN ULONG ComPortNumber)
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{
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NTSTATUS Status;
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#if 0 // Deactivated because never used in fact (was in KdPortInitialize but we use KdPortInitializeEx)
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/*
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* Find the port if needed
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*/
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if (!PortInitialized)
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{
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DefaultPort.BaudRate = PortInformation->BaudRate;
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if (ComPortNumber == 0)
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{
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/*
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* Start enumerating COM ports from the last one to the first one,
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* and break when we find a valid port.
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* If we reach the first element of the list, the invalid COM port,
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* then it means that no valid port was found.
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*/
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for (ComPortNumber = MAX_COM_PORTS; ComPortNumber > 0; ComPortNumber--)
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{
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if (CpDoesPortExist(UlongToPtr(BaseArray[ComPortNumber])))
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{
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PortInformation->Address = DefaultPort.Address = BaseArray[ComPortNumber];
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break;
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}
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}
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if (ComPortNumber == 0)
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{
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HalDisplayString("\r\nKernel Debugger: No COM port found!\r\n\r\n");
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return FALSE;
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}
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}
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PortInitialized = TRUE;
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}
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#endif
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/*
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* Initialize the port
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*/
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Status = CpInitialize(PortInformation,
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(ComPortNumber == 0 ? PortInformation->Address
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: UlongToPtr(BaseArray[ComPortNumber])),
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(PortInformation->BaudRate == 0 ? DEFAULT_BAUD_RATE
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: PortInformation->BaudRate));
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if (!NT_SUCCESS(Status))
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{
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HalDisplayString("\r\nKernel Debugger: Serial port not found!\r\n\r\n");
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return FALSE;
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}
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else
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{
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#ifndef NDEBUG
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CHAR buffer[80];
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/* Print message to blue screen */
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sprintf(buffer,
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"\r\nKernel Debugger: Serial port found: COM%ld (Port 0x%p) BaudRate %ld\r\n\r\n",
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ComPortNumber,
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PortInformation->Address,
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PortInformation->BaudRate);
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HalDisplayString(buffer);
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#endif /* NDEBUG */
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#if 0
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/* Set global info */
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KdComPortInUse = DefaultPort.Address;
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#endif
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return TRUE;
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}
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}
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BOOLEAN
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NTAPI
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KdPortGetByteEx(
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IN PCPPORT PortInformation,
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OUT PUCHAR ByteReceived)
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{
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return (CpGetByte(PortInformation, ByteReceived, FALSE, FALSE) == CP_GET_SUCCESS);
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}
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VOID
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NTAPI
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KdPortPutByteEx(
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IN PCPPORT PortInformation,
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IN UCHAR ByteToSend)
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{
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CpPutByte(PortInformation, ByteToSend);
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}
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/* EOF */
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